If an object is more dense it will absorb so it will reflect less
A solar eclipse is where the moon and sun are aligned with each other. depending on totality it changes the way the day looks. If the totality is 100% it’ll be pitch black for about a few second up to a minute.
Answer: Didn't quite understand but if you mean plant biology then, ' Plant biology is the lab science area of plant study although they may spend some time in the field collection samples and taking records of plants in their natural habitats. It requires not only an understanding of a plant's biology but also its chemistry. This will include its genetic coding.'
Y I think. Not too sure. Hope it’s right!